Carex

Common Name

sedge

Traits

Sun

Shade

Rockery

Flowering Season

Summer

Genus

This worldwide genus of grass-like sedges belonging to the family Cyperaceae is usually found growing in permanently moist or seasonally boggy conditions. The genus contains about 1,000 species of deciduous or evergreen sedges. Though a number of species can be invasive, many have ornamental qualities that make them ideal for use in the garden, particularly as waterside plants, and a number of the smaller plants make excellent pot plant subjects. In New Zealand, Carex sedges or tussocks are among the dominant plants in grassland areas, and have produced several popular cultivars.

Appearance

Carex species range in habit from low-growing and tufted to tall and tussock-forming. They are grown for the form and colour of their foliage, which may be green, red, or brown and ranges from fine and hair-like, sometimes with curled tips, to quite broad with a noticeable midrib and sometimes razor sharp edges. Short spikes of tiny flowers develop in the warmer months, with male and female flowers borne separately on the same plant.

Cultivation

Carex species like a position in full sun or half-sun with moist well-drained soil. Despite their natural preference for damp conditions, some species will tolerate drought and can be extremely effective at binding thin soils. Sedges are easy-care plants, though some species can be invasive. A number of species are suited to pot culture. New plants can be raised from seed but as most species quickly reach divisible size, it is seldom necessary.

Gardening Australia suggests you check with your local authorities regarding the weed potential of any plants for your particular area.